The Spring,helical,torsion, cataloged under National Stock Number 5360-00-437-4049, is classified within Federal Supply Class 5360 (Coil, Flat, Leaf, and Wire Springs) of the Hardware and Abrasives group. The manufacturer of record is The Precision Coil Spring Company Dba Precision Coil Spring Co. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5360-00-437-4049 |
| Primary Part Number | 218-45401-1 |
| Item Name | Spring,helical,torsion |
| FSC / FSG | 5360 / 53 — Coil, Flat, Leaf, and Wire Springs |
| Manufacturer | The Precision Coil Spring Company Dba Precision Coil Spring Co |
| Status | ACTIVE |
| Spring Free Outside Diameter | 0.388 INCHES NOMINAL IN |
| End Style | ANGULAR END (RIGHT) SECOND END |
| End Style | MACHINE LOOP END FIRST END |
| End Length | 0.800 INCHES NOMINAL SECOND END IN |
| End Length | 0.550 INCHES NOMINAL FIRST END IN |
| Style Designator | SINGLE TORSION LEFT HAND |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Spring Free Length | 0.620 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN |
| Spring Deflection Rate | 0.0182 POUNDS PER INCH NOMINAL LBS |
| Inside Diameter | 0.280 INCHES NOMINAL IN |
| Stock Diameter | 0.054 INCHES NOMINAL IN |
| Coil Quantity | 11-1/2 |
| Coil Helix Direction | RIGHT-HAND |
| Material | STEEL UNS K08500 OVERALL |
| End Length From Second Bend to Third Bend or End | 0.304 INCHES NOMINAL SECOND END IN |
| End Angular Relationship | ENDS ANGLED ONE TO OTHER |
| Hook Radius | 0.120 INCHES NOMINAL FIRST END IN |
| Hook Leg Length | 0.250 INCHES NOMINAL FIRST END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 218-45401-1 | The Precision Coil Spring Company Dba Precision Coil Spring Co (USA) |
| Reference | Meaning |
|---|---|
| 218-45401-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5360-00-437-4049 is a Spring,helical,torsion, manufactured by The Precision Coil Spring Company Dba Precision Coil Spring Co, classified under FSC 5360, Coil, Flat, Leaf, and Wire Springs. Status: active.
NSN 5360-00-437-4049 has 1 manufacturer part number on file: 218-45401-1 (The Precision Coil Spring Company Dba Precision Coil Spring Co).
Key specifications for 218-45401-1: Spring Free Outside Diameter: 0.388 INCHES NOMINAL IN; End Style: ANGULAR END (RIGHT) SECOND END; End Style: MACHINE LOOP END FIRST END; End Length: 0.800 INCHES NOMINAL SECOND END IN. 18 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.